i18n review fixes (#63) and invalidation/Check fixes (#64-#67)

#63: Truman's i18n review (release gate runs i18n/CLI tests, Babel check, ruff known-first-party, no translated text stored in the wallet). #64: invalidation pays the current network fee (2-block estimate). #65: Check KeyError on a stale father link. #66: invalidation cascade with list-shaped children. #67: deselected will-executor (delete allowed if never received; broadcast skips it).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

bal/core/willexecutors.py

@@ -230,7 +230,21 @@ class Willexecutors:
         return True
 
     @staticmethod
-    def get_willexecutor_transactions(will, force=False):
+    def get_willexecutor_transactions(will, force=False, current_willexecutors=None):
+        """Group the valid, signed, not-yet-pushed will txs by will-executor.
+
+        Returns ``{url: executor_record}`` where each record gets ``txs`` (the
+        raw txs, one per line) and ``txsids``.
+
+        ``current_willexecutors`` is the CURRENT executor list from the config
+        (``{url: record}``). When given, an executor that is no longer in it or
+        no longer selected is skipped. WHY: every will item keeps its own copy
+        of the executor record taken at build time (``selected`` = True), so
+        without this check a deselected executor would still receive the will.
+        ``None`` keeps the previous behaviour (only the item's own copy).
+
+        The returned records are COPIES: the will items are never modified.
+        """
         willexecutors = {}
         for wid, willitem in will.items():
             if willitem.get_status("VALID"):
@@ -238,12 +252,26 @@ class Willexecutors:
                     if not willitem.get_status("PUSHED") or force:
                         if willexecutor := willitem.we:
                             url = willexecutor["url"]
+                            if current_willexecutors is not None and not (
+                                Willexecutors.is_selected(
+                                    current_willexecutors.get(url)
+                                )
+                            ):
+                                continue
                             if willexecutor and Willexecutors.is_selected(willexecutor):
                                 if url not in willexecutors:
-                                    willexecutor["txs"] = ""
-                                    willexecutor["txsids"] = []
-                                    willexecutor["broadcast_status"] = _("Waiting...")
-                                    willexecutors[url] = willexecutor
+                                    # Work on a COPY of the record: the item's
+                                    # own ``we`` dict is saved in the wallet, so
+                                    # the transient push fields below (raw txs,
+                                    # txids and the - translated - broadcast
+                                    # status shown in the push dialog) must
+                                    # never end up in it (stored data must not
+                                    # depend on the UI language, see bal/i18n.py).
+                                    record = dict(willexecutor)
+                                    record["txs"] = ""
+                                    record["txsids"] = []
+                                    record["broadcast_status"] = _("Waiting...")
+                                    willexecutors[url] = record
                                 willexecutors[url]["txs"] += str(willitem.tx) + "\n"
                                 willexecutors[url]["txsids"].append(wid)